EP2415949B1 - Levelling indicator for the production of a concrete covering - Google Patents
Levelling indicator for the production of a concrete covering Download PDFInfo
- Publication number
- EP2415949B1 EP2415949B1 EP11176355.3A EP11176355A EP2415949B1 EP 2415949 B1 EP2415949 B1 EP 2415949B1 EP 11176355 A EP11176355 A EP 11176355A EP 2415949 B1 EP2415949 B1 EP 2415949B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- trunk
- substrate
- marker
- gauge rod
- foot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000758 substrate Substances 0.000 claims description 64
- 239000003550 marker Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 241000940835 Pales Species 0.000 description 2
- 206010033546 Pallor Diseases 0.000 description 2
- 241001080024 Telles Species 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/10—Devices for levelling, e.g. templates or boards
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
Definitions
- the invention relates to a leveling rod for producing a concrete screed on a substrate.
- the invention also relates to an assembly for producing a concrete screed.
- concrete any mixture of binders with water and, optionally, with inert aggregates or adjuvants, capable of hardening on drying to form a screed.
- cement screed it includes cement screeds or mortar.
- the leveling rod of the invention is particularly suitable for the production of floating concrete screeds.
- Floating concrete screed means a concrete screed cast on a substrate deposited on a floor, the concrete screed not being inked on the ground.
- the position of the mark of these rods is adjusted with the aid of a laser so that the pins of all pins are at the same height.
- the liquid concrete is then poured on the substrate and stretched so that it spreads uniformly over the entire substrate.
- the rods are thus immersed until all the pins are flush with the top of the liquid screed.
- the casting is then interrupted.
- the rods are removed from the screed before solidification of the concrete and cleaned so that they can be reused.
- the surface condition is smoothed by a user using a broom or a finishing bar.
- Leveling pins known to the depositor are formed of a tripod whose feet are fixed to a slide.
- the movable marker is formed of a rod slidably mounted within the slider and whose lower end defines the thickness of the concrete screed at the location of the pin on the substrate.
- the rod is immobilized with a screw housed in the slide or with a compressor seal disposed between the slide and the rod.
- these rods are generally made of metals such as steel or aluminum.
- the surface condition of these metals being rough, drying the concrete hangs on these rods.
- the cleaning time of these rods is important.
- concrete is housed between the slider and the screw. Thus, when the concrete solidifies, the screw gets stuck.
- a compressor seal is used, it quickly deteriorates and must therefore be replaced often which represents a cost to the user.
- the invention aims to solve one or more of these disadvantages.
- the invention thus relates to a leveling rod according to claim 1.
- the foot of the pin of the pin described above is fixed to the substrate via the tip which penetrates inside the substrate. As a result, the peg does not move when the liquid concrete is poured onto the substrate.
- the invention also relates to an assembly for producing a concrete screed according to claim 9 comprising at least one leveling peg according to claim 1 or the dependent claims.
- the figure 1 illustrates a set 2 for producing a concrete screed.
- the assembly 2 comprises a substrate 4 intended to be disposed on the floor of the room in which the concrete screed is made.
- the substrate 4 makes it possible to mechanically isolate the floor screed on which it rests.
- the substrate 4 allows the yoke to expand thermally without being constrained by the ground.
- the substrate 4 advantageously comprises thermal insulation and sound insulation properties.
- the substrate 4 has a thermal conductivity lower than 0.03W / mK or 0.06W / mK.
- the Shore hardness on the scale A of the substrate 4 at 20 ° C is between 30 and 99 and advantageously between 30 and 70 or between 30 and 50.
- the hardness of the substrate 4 can also be expressed in Brinell. In this case, the hardness is approximately between 7 and 20 Brinell, and advantageously between 7 and 15 Brinell or between 7 and 10 Brinell.
- the substrate 4 is an elastomer.
- the substrate 4 is a polyurethane plate (not shown in its entirety) whose thickness is less than 20 mm or 40 mm and preferably greater than 1 mm or 10 mm.
- the position of the marker 9 delimits the thickness of the concrete screed at the location of the pin 6 on the substrate 4.
- the stud 8 has a foot 10 intended to be placed on the substrate 4.
- the foot 10 comprises a bottom surface 14 that comes into contact with the substrate 4. This face 14 is advantageously flat so as to be plated on the substrate 4
- the surface of the face 14 intended to come into contact with the substrate 4 is greater than 3 cm 2 and, preferably, greater than 10 cm 2 to ensure the stability of the pad 8.
- the foot 10 also comprises an upper face 16 on which rests a lower end of a trunk 12 which extends along an axis 13.
- the trunk 12 is described below in more detail.
- the foot 10 is a disc of radius R and height H1.
- the radius R is between 30mm and 60mm.
- the radius R is 50mm.
- the height H1 is between 3mm and 7mm.
- the height H1 is 5mm.
- the ratings are given for information only and not limiting, for the realization of a concrete screed whose thickness is less than 150mm. These dimensions may, however, be adjusted by those skilled in the art so as to be able to size the rod 6 for the production of a yoke whose thickness is greater than 150 mm.
- the dimensions associated with the pad 8 are more visible on the figure 2 .
- the foot 10 also comprises two points 20, 22 able to penetrate inside the substrate 4 by pressing, when pressing the trunk 12 towards the substrate, to anchor the foot 10 on the substrate 4.
- These tips 20 , 22 are able to be driven manually into the substrate 4 until the face 14 is in contact with this substrate.
- the tips 20, 22 are sharp enough that a user does not need to use any tool, such as a hammer, to fully push these points in the substrate 4.
- These tips 20, 22 thus prevent the displacement of the pin 6 on the substrate 4 when the liquid concrete is poured.
- the tips 20, 22 extend from the lower face 14 along axes 21, 23, respectively.
- the axes 21, 23 are perpendicular to the face 14.
- the axes 21, 23 are contained in a plane P containing the axis 13. Under these conditions, manufacture of the stud 8 by molding is facilitated.
- the axes 21, 23 and 13 are oriented so that the plane P is a plane of symmetry for the stud 8.
- the axes 21, 23 and 13 are oriented so that the axis 13 forms an axis of symmetry for the stud 8. In this case, the warpage of the stud 8 manufactured by molding is decreased.
- the lengths I1 and I2 of the tips, respectively, 20, 22 are greater than or equal to half the thickness of the substrate 4, preferably greater than 0.75 times this thickness.
- the spikes 20, 22 here have a length I1 and I2 of 18mm.
- the tips 20, 22 have projections 24 extending radially on the outer periphery of the tips 20, 22 so as to increase the mechanical resistance of the tips 20, 22 to a possible tearing of the stud 8.
- the trunk 12 and the mark 9 are shaped to allow the sliding of the mark 9 along the trunk 12.
- the trunk 12 is cylindrical and the mark 9 comprises a recess 25 in which the trunk 12 is received.
- the term "cylinder" means a solid whose volume is generated by the translation of a director face along a generator.
- the leading face is not limited to the case where it is a circle. It can be a square, a triangle, a cross or a face of any shape.
- the generatrix of the trunk 12 and the axis 13 are merged and are perpendicular to the faces 14 and 16 of the foot 10.
- the trunk 12 is a right cylinder.
- H2 denotes the height of the trunk 12 along the axis 13.
- the height H2 is determined to be greater than the thickness of the yoke to be cast on the substrate.
- the height H2 is greater than 50mm or 100mm and preferably less than 300mm or 200mm. In this example, the height H2 is 150mm.
- c1 is the height of the blades 30-33.
- c2 the width of the blades 30-33.
- C3 denotes the thickness of the blades 30-33.
- the blades 30-33 extend over the entire height of the trunk 12. Also, here, the height c1 is 150mm.
- the width c2 of the blades is included between 1mm and 30mm.
- the thickness c3 is between 0.9mm and 5mm. In the example, the width c2 and the thickness c3 are equal, respectively, to 9mm and 2mm.
- the upper ends 35 of the blades 30-33 are bevelled so as to facilitate the introduction of the trunk 12 into the recess 25.
- the term "upper ends" of the blades 30-33 the ends through which the trunk 12 is introduced in the recess 25.
- the trunk 12 is formed integrally with the foot 10 and the tips 20, 22 so as to form a single block of material.
- the stud 8 is made of plastic such as Sinkral (trademark) sold under the reference F332 by Polimeri Europa (trademark).
- the hardness of the material in which the pad 8 is made is greater and, preferably 1.5 times greater, the hardness of the substrate 4 so that the tips 20, 22 can penetrate inside the substrate 4 without deforming and so that the trunk 12 does not bend under its own weight when the pad 8 is deposited on the substrate 4.
- the hardness is for example measured using the Brinell scale.
- the mark 9 is shaped so as to slide along the trunk 12.
- the mark 9 comprises a ring 44.
- the inner faces of this ring 44 delimits the recess 25 in which may be introduced the trunk 12.
- the inner faces of the ring 44 and the outer faces of the trunk 12 have a complementary shape so as to allow the sliding of the mark 9 along the axis 13.
- the ring 44 has four grooves 46-49 arranged on the inner faces of the ring 44.
- the grooves 46-49 are intended to receive ribs which extend parallel to the generatrix of the trunk 12 so as to prevent rotation of the ring 44 around the trunk 12.
- grooves 46-49 are shaped so that when the trunk 12 is introduced into the recess 25 of the mark 9, the blades 30-33 slide, respectively, in the grooves 46-49.
- the mark 9 is shaped so that it is able to be maintained at an adjustable position only by means of friction between the mark 9 and the trunk 12.
- the width of the recess 25 in at least one measurement direction is less than or equal to the thickness of the trunk 12 according to the same measurement direction.
- the height h2 of the ring 44 in a direction parallel to the axis 13 is greater than 1 mm to ensure good stability.
- the height h2 of the ring 44 is 7mm.
- the reference 9 also includes a visual reference allowing the user to define the thickness of the yoke at the level of the pin 6 on the substrate 4.
- the reference 9 comprises a flange 50 disposed around the ring 44.
- This collar 50 advantageously extends perpendicular to the outer faces of the ring 44 so that when the trunk 12 is introduced into the recess 25, and the stud 8 is disposed on the substrate 4, the flange 50 is parallel to the face 14 and thus the floor of the room in which is made the concrete screed. Under these conditions, the flange 50 can be positioned using a laser.
- the flange 50 is circular. Still in the example, the flange 50 and the ring 44 are formed in one piece. To have sufficient stiffness, the thickness h3 of the flange 50 is greater than 1 mm. Here, the thickness h3 is 3mm.
- the reference 9 is made of a material whose hardness is strictly less than that of the material used to make the blades 30-33.
- the mark 9 is made of plastic.
- the hardness on the Brinell scale of the material in which the mark 9 is made is less than 20, preferably less than 15 or 10.
- the material used to make the mark 9 is Exxtral (registered trademark). sold under the reference HMU208100000 by Exxon Mobil (trademark).
- the mark 9 is made by molding.
- the figure 6 illustrates a variant 80 of the reference 9.
- This variant 80 is identical to the mark 9 except that the ring 44 is replaced by a ring 82 in which the grooves 46-49 are omitted. In this case, the rotation of the ring 70 around the trunk 12 is allowed.
- Foot 10 is not necessarily a disc.
- the foot 10 can have any type of shape.
- the flange 50 is necessarily circular.
- More than two tips may be used to anchor the foot 10 on the substrate 4. Similarly, only one tip may be used. In this case, this tip preferably extends along the axis 13. In a variant, the tips do not all extend in the same plane P.
- the stud and / or the marker are not necessarily made of plastic.
- the stud may be made of metal.
- the weight of the freelancer remains less than 1 kg and, advantageously, 350 g.
- the projections and recesses of the trunk 12 and the mark 9 allowing the sliding of the mark 9 on the trunk 12 can be interchanged with each other.
- the number of protrusions and recesses may be different from four.
- the ribs and grooves of the trunk 12 and the mark 9 does not allow the rotation of the mark 9 on the trunk 12 can be interchanged with each other.
- the number of ribs and grooves can be different from four.
- a circlip or the like may be disposed around the trunk 12 under the reference 9, in support, so as to maintain the mark on the body in a predetermined position.
- the user elastically deforms the ring 44 when the trunk 12 is introduced into the recess 25.
- the friction forces occurring between the mark 9 and the trunk 12 are increased, which makes it possible to further improve the maintenance of the reference mark 9 on the trunk 12.
- the introduction of the trunk 12 into the recess 25 is facilitated.
- Holes for receiving the tips 20, 22 may be preformed in the substrate 4 before the depression of the pin in this substrate. In this case, the hardness of the tips does not need to be greater than the hardness of the substrate.
- the trunk 12 may comprise protuberances or graduations extending on the outer periphery of the trunk 12 so as to increase the friction exerted between the reference 9 and the trunk 12. These protuberances extend for example on the outer faces of the blades 30-33, perpendicular to the generator of the trunk 12.
- the use of the rod 6 is not limited to the production of floating concrete screed.
- the rod 6 can be used for the realization of any type of screed.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Toys (AREA)
- Road Paving Machines (AREA)
Description
L'invention concerne une pige de nivellement pour la réalisation d'une chape de béton sur un substrat. Dans une réalisation préférée l'invention concerne également un ensemble pour la réalisation d'une chape de béton.The invention relates to a leveling rod for producing a concrete screed on a substrate. In a preferred embodiment, the invention also relates to an assembly for producing a concrete screed.
Par béton, on désigne tout mélange de liants avec de l'eau et, éventuellement, avec des agrégats inertes ou des adjuvants, susceptible de durcir en séchant pour former une chape. Ainsi, sous la terminologie « chape de béton », on englobe les chapes de ciment ou encore de mortier.By concrete is meant any mixture of binders with water and, optionally, with inert aggregates or adjuvants, capable of hardening on drying to form a screed. Thus, under the terminology "concrete screed", it includes cement screeds or mortar.
La pige de nivellement de l'invention est en particulier adaptée à la réalisation de chapes de béton flottante. Par « chape de béton flottante », on désigne une chape de béton coulée sur un substrat déposé sur un sol, la chape de béton n'étant pas encrée au sol.The leveling rod of the invention is particularly suitable for the production of floating concrete screeds. "Floating concrete screed" means a concrete screed cast on a substrate deposited on a floor, the concrete screed not being inked on the ground.
La réalisation de chapes de béton flottante est largement répandue dans le domaine du bâtiment. Elles ont en effet l'avantage d'atténuer la transmission des vibrations sonores au niveau du sol. Par ailleurs, les chapes de béton présentent un état de surface plan et lisse. Une fois réalisées, elles peuvent ainsi rester apparentes, être peintes, ou encore servir de base à un revêtement de sol tel que du carrelage.The production of floating concrete screeds is widespread in the building sector. They have the advantage of attenuating the transmission of sound vibrations at ground level. In addition, concrete screeds have a flat and smooth surface condition. Once realized, they can remain visible, be painted, or be used as a basis for a floor covering such as tiling.
La réalisation d'une chape de béton flottante est connue en soi. Cette réalisation comprend au préalable la couverture de l'intégralité du sol de la pièce sur lequel est réalisée la chape d'un substrat. Typiquement, ce substrat a pour but d'isoler thermiquement la chape de béton du sol et de limiter les contraintes mécaniques exercées entre le sol et cette chape. Le substrat est par exemple formé de plaques d'élastomère, tel que de la mousse polyuréthane rigide, emboitées les unes avec les autres. Les joints séparant les plaques sont ensuite recouverts d'un adhésif hermétique de manière à empêcher le béton liquide de passer entre les plaques du substrat. Une fois la pose du substrat achevée, des piges de nivellement sont disposées à intervalles réguliers sur le substrat. Ces piges permettent à l'utilisateur de contrôler la planéité de la chape, lorsque le béton liquide est coulé sur le substrat. Ces piges comportent généralement:
- au moins un plot présentant un tronc pourvu d'un pied destiné à être disposé sur le substrat, et
- un repère mobile monté sur ce plot, la position du repère permettant de délimiter l'épaisseur de la chape de béton à l'emplacement de la pige sur le substrat.
- at least one stud having a trunk provided with a foot intended to be placed on the substrate, and
- a movable marker mounted on this pad, the position of the marker for delimiting the thickness of the concrete cap at the location of the pin on the substrate.
La position du repère de ces piges est réglée à l'aide d'un laser de telle sorte que les repères de toutes les piges soient à une même hauteur. Le béton liquide est alors coulé sur le substrat et étiré de manière à ce qu'il se répande uniformément sur l'ensemble du substrat. Les piges sont ainsi immergées jusqu'à ce que tous les repères soient affleurants au-dessus de la chape liquide. La coulée est alors interrompue. Les piges sont retirées de la chape avant solidification du béton et nettoyées de manière à pouvoir être réutilisées. Enfin, l'état de surface est lissé par un utilisateur à l'aide d'un balai ou d'une barre de finition.The position of the mark of these rods is adjusted with the aid of a laser so that the pins of all pins are at the same height. The liquid concrete is then poured on the substrate and stretched so that it spreads uniformly over the entire substrate. The rods are thus immersed until all the pins are flush with the top of the liquid screed. The casting is then interrupted. The rods are removed from the screed before solidification of the concrete and cleaned so that they can be reused. Finally, the surface condition is smoothed by a user using a broom or a finishing bar.
Des piges de nivellement connues du déposant sont formées d'un trépied dont les pieds sont fixés à un coulisseau. Le repère mobile est formé d'une tige montée coulissante à l'intérieur de ce coulisseau et dont l'extrémité inférieure délimite l'épaisseur de la chape de béton à l'emplacement de la pige sur le substrat. La tige est immobilisée à l'aide d'une vis logée dans le coulisseau ou à l'aide d'un joint de compresseur disposé entre le coulisseau et la tige.Leveling pins known to the depositor are formed of a tripod whose feet are fixed to a slide. The movable marker is formed of a rod slidably mounted within the slider and whose lower end defines the thickness of the concrete screed at the location of the pin on the substrate. The rod is immobilized with a screw housed in the slide or with a compressor seal disposed between the slide and the rod.
Un inconvénient inhérent d'une telle pige est que les pieds du trépied sont simplement posés sur le substrat. Aussi, lorsque le béton liquide est coulé sur le substrat, il arrive que le courant résultant de cette coulée déplace légèrement le trépied sur le substrat. Dans ce cas, le sol n'étant pas parfaitement plat, la hauteur délimitée par l'extrémité inférieure de la tige est modifiée. En conséquence, la chape réalisée peut ne pas être parfaitement plane.An inherent disadvantage of such a peg is that the tripod legs are simply placed on the substrate. Also, when the liquid concrete is poured on the substrate, it happens that the current resulting from this casting slightly displaces the tripod on the substrate. In this case, the soil is not perfectly flat, the height defined by the lower end of the rod is changed. As a result, the screed made may not be perfectly flat.
Un autre inconvénient est que ces piges sont généralement réalisées dans des métaux tels que de l'acier ou de l'aluminium. L'état de surface de ces métaux étant rugueux, en séchant le béton accroche à ces piges. Aussi, le temps de nettoyage de ces piges est important. Par ailleurs, suite au nettoyage de ces piges il est courant que du béton se loge entre le coulisseau et la vis. Ainsi, lorsque le béton se solidifie, la vis se coince. De plus, dans le cas où un joint de compresseur est utilisé, celui-ci s'altère rapidement et doit en conséquence être remplacé souvent ce qui représente un coût pour l'utilisateur.Another disadvantage is that these rods are generally made of metals such as steel or aluminum. The surface condition of these metals being rough, drying the concrete hangs on these rods. Also, the cleaning time of these rods is important. Moreover, following the cleaning of these pegs it is common that concrete is housed between the slider and the screw. Thus, when the concrete solidifies, the screw gets stuck. In addition, in the case where a compressor seal is used, it quickly deteriorates and must therefore be replaced often which represents a cost to the user.
Un autre inconvénient est l'encombrement du trépied lorsque celui-ci est plié. Le volume nécessaire au stockage de ces piges est important et la quantité de piges qu'un utilisateur peut transporter dans son véhicule est limitée.Another disadvantage is the clutter of the tripod when it is folded. The volume required for storage of these pins is important and the amount of rods that a user can carry in his vehicle is limited.
Enfin, ces piges sont lourdes (environ 1 kg) ce qui rend difficile le transport d'une grande quantité de ces piges.Finally, these rods are heavy (about 1 kg) which makes it difficult to transport a large amount of these rods.
De l'état de la technique est également connu de
L'invention vise à résoudre un ou plusieurs de ces inconvénients. L'invention porte ainsi sur une pige de nivellement conforme à la revendication 1.The invention aims to solve one or more of these disadvantages. The invention thus relates to a leveling rod according to claim 1.
Le pied du plot de la pige décrite ci-dessus est fixé au substrat par l'intermédiaire de la pointe qui pénètre à l'intérieur du substrat. En conséquence, la pige ne se déplace pas lorsque le béton liquide est coulé sur le substrat.The foot of the pin of the pin described above is fixed to the substrate via the tip which penetrates inside the substrate. As a result, the peg does not move when the liquid concrete is poured onto the substrate.
Une telle pige présente en outre les avantages suivants:
- ▪ lorsque le tronc et le repère sont conformés pour coulisser, la position du repère peut être ajustée facilement sur le tronc et
- ▪ lorsque le repère est maintenu sur le tronc uniquement par l'intermédiaire de frottements entre le repère et le tronc cela évite le recours à des pièces supplémentaires telles que des vis.
- ▪ when the trunk and the marker are slid to shape, the position of the marker can be adjusted easily on the trunk and
- ▪ when the mark is kept on the trunk only by means of friction between the marker and the trunk, this avoids the need for additional parts such as screws.
Les modes de réalisation de cette pige peuvent comporter une ou plusieurs des caractéristiques suivantes:
- ▪ pige dans laquelle:
- le tronc s'étend le long d'un axe vertical, et
- l'ensemble des pointes de la pige s'étendent principalement le long d'axes contenus dans un plan contenant l'axe vertical,
- ▪ la pige comprend uniquement un pied destiné à être disposé sur le substrat,
- ▪ le repère et le tronc sont réalisés, respectivement, dans des premier et second matériaux, la dureté du premier matériau étant strictement inférieure à la dureté du second matériau,
- ▪ le tronc comprend au moins une rainure ou une nervure qui s'étend parallèlement à la génératrice du tronc, et le repère comprend une saillie reçue à l'intérieur de la rainure ou un creux recevant la nervure, et
- ▪ le tronc comporte au moins quatre nervures uniformément réparties sur la périphérie du tronc.
- ▪ freelancing in which:
- the trunk extends along a vertical axis, and
- the set of points of the rod extend mainly along axes contained in a plane containing the vertical axis,
- The pin comprises only one foot intended to be placed on the substrate,
- The mark and the trunk are made, respectively, in first and second materials, the hardness of the first material being strictly less than the hardness of the second material,
- ▪ the trunk comprises at least one groove or rib extending parallel to the trunk generator, and the mark comprises a projection received within the groove or a recess receiving the rib, and
- The trunk comprises at least four ribs uniformly distributed around the periphery of the trunk.
Les modes de réalisation de cette pige présentent en outre les avantages suivants:
- ▪ lorsque les pointes sont disposées le long d'axes contenus dans un plan contenant l'axe selon lequel s'étend le tronc, la fabrication du plot par moulage est facilitée car seules deux coquilles de moulage sont nécessaires,
- ▪ lorsque la pige comprend uniquement un pied, l'encombrement de la pige est diminué,
- ▪ lorsque le tronc et le repère comprennent une nervure et une rainure telle que décrites plus haut, la rotation du repère sur le tronc n'est pas autorisée, et
- ▪ lorsque la dureté du repère est inférieure à la dureté du tronc, le réglage de la position du repère le long du tronc est facilité.
- ▪ when the tips are arranged along axes contained in a plane containing the axis along which the trunk extends, manufacture of the stud by molding is facilitated because only two mold shells are needed,
- ▪ when the freeride includes only one foot, the footprint of the freelancer is decreased,
- ▪ when the trunk and the mark include a rib and a groove as described above, the rotation of the mark on the trunk is not allowed, and
- ▪ When the hardness of the marker is lower than the hardness of the trunk, the setting of the position of the marker along the trunk is facilitated.
L'invention concerne également un ensemble pour la réalisation d'une chape de béton conforme à la revendication 9 comprenant au moins une pige de nivellement selon la revendication 1 ou les revendications dépendantes.The invention also relates to an assembly for producing a concrete screed according to
Les modes de réalisation de cet ensemble peuvent comporter la caractéristique suivante:
- ▪ le substrat comprend du polyuréthane ou du polystyrène.
- ▪ the substrate comprises polyurethane or polystyrene.
D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :
- la
figure 1 est une illustration schématique partielle en perspective d'un ensemble pour la réalisation d'une chape de béton, - la
figure 2 est une illustration schématique partielle en vue de côté d'un plot pour une pige de nivellement de l'ensemble de lafigure1 , - la
figure 3 est une illustration schématique en vue de dessus du plot de lafigure 2 , - la
figure 4 est une illustration schématique en vue de côté d'un repère pour la pige de nivellement de l'ensemble de lafigure 1 , et - la
figure 5 est une illustration schématique en vue de dessus du repère de lafigure 4 , et - la
figure 6 est une illustration schématique en vue de dessus d'une variante du repère de lafigure 4 ,
- the
figure 1 is a partial schematic illustration in perspective of an assembly for producing a concrete screed, - the
figure 2 is a partial schematic illustration in side view of a stud for a leveling rod of the whole of thefigure 1 , - the
figure 3 is a schematic illustration in top view of the plot of thefigure 2 , - the
figure 4 is a schematic illustration in side view of a benchmark for the leveling peg of the entirefigure 1 , and - the
figure 5 is a schematic illustration in top view of the benchmark of thefigure 4 , and - the
figure 6 is a schematic illustration in top view of a variant of the reference of thefigure 4 ,
Dans ces figures, les mêmes références sont utilisées pour désigner les mêmes éléments.In these figures, the same references are used to designate the same elements.
Dans la suite de cette description, les caractéristiques et fonctions bien connues de l'homme du métier ne sont pas décrites en détail.In the remainder of this description, the features and functions well known to those skilled in the art are not described in detail.
La
A cet effet, de préférence, le substrat 4 présente une conductivité thermique inférieure à 0,03W/mK ou 0,06W/mK. De préférence, la dureté Shore sur l'échelle A du substrat 4 à 20°C est comprise entre 30 et 99 et, avantageusement entre 30 et 70 ou entre 30 et 50. La dureté du substrat 4 peut également être exprimée en Brinell. Dans ce cas, la dureté est comprise approximativement entre 7 et 20 Brinell, et avantageusement entre 7 et 15 Brinell ou entre 7 et 10 Brinell. Avantageusement, le substrat 4 est un élastomère. Ici, le substrat 4 est une plaque de polyuréthane (non représentée dans sa totalité) dont l'épaisseur est inférieure à 20mm ou 40mm et, de préférence, supérieure à 1 mm ou 10mm.For this purpose, preferably, the substrate 4 has a thermal conductivity lower than 0.03W / mK or 0.06W / mK. Preferably, the Shore hardness on the scale A of the substrate 4 at 20 ° C is between 30 and 99 and advantageously between 30 and 70 or between 30 and 50. The hardness of the substrate 4 can also be expressed in Brinell. In this case, the hardness is approximately between 7 and 20 Brinell, and advantageously between 7 and 15 Brinell or between 7 and 10 Brinell. Advantageously, the substrate 4 is an elastomer. Here, the substrate 4 is a polyurethane plate (not shown in its entirety) whose thickness is less than 20 mm or 40 mm and preferably greater than 1 mm or 10 mm.
L'ensemble 2 comporte également une pige de nivellement 6 comprenant:
un plot 8, et- un repère mobile 9 monté sur le
plot 8.
- a
stud 8, and - a
movable marker 9 mounted on thestud 8.
La position du repère 9 délimite l'épaisseur de la chape de béton à l'emplacement de la pige 6 sur le substrat 4.The position of the
Le plot 8 présente un pied 10 destiné à être disposé sur le substrat 4. Le pied 10 comprend une face inférieure 14 d'appui venant en contact avec le substrat 4. Cette face 14 est avantageusement plane de manière à être plaquée sur le substrat 4. La surface de la face 14 destinée à venir en contact avec le substrat 4 est supérieure à 3cm2 et, de préférence, supérieure à 10cm2 pour assurer la stabilité du plot 8. Le pied 10 comporte également une face supérieure 16 sur laquelle repose une extrémité inférieure d'un tronc 12 qui s'étend selon un axe 13. Le tronc 12 est décrit plus loin plus en détail. Dans l'exemple, le pied 10 est un disque de rayon R et de hauteur H1.The
De préférence, le rayon R est compris entre 30mm et 60mm. Dans cet exemple, le rayon R est de 50mm. Toujours de manière préférentielle, la hauteur H1 est comprise entre 3mm et 7mm. Ici, la hauteur H1 est de 5mm. Dans cette description les cotes sont données à titre indicatif et non limitatif, pour la réalisation d'une chape de béton dont l'épaisseur est inférieure à 150mm. Ces cotes peuvent cependant être ajustées par l'homme du métier de manière à pouvoir dimensionner la pige 6 pour la réalisation d'une chape dont l'épaisseur est supérieure à 150mm. Les cotes associées au plot 8 sont plus visibles sur la
Le pied 10 comprend par ailleurs deux pointes 20, 22 aptes à pénétrer à l'intérieur du substrat 4 par enfoncement, lorsqu'on appuie sur le tronc 12 en direction du substrat, pour ancrer le pied 10 sur ce substrat 4. Ces pointes 20, 22 sont aptes à être enfoncées manuellement dans le substrat 4 jusqu'à ce que la face 14 soit en contact avec ce substrat. A cet effet, les pointes 20, 22 sont suffisamment pointues pour qu'un utilisateur n'ait pas besoin d'utiliser un quelconque outil, tel qu'un marteau, pour enfoncer complètement ces pointes dans le substrat 4. Ces pointes 20, 22 permettent ainsi d'empêcher le déplacement de la pige 6 sur le substrat 4 lorsque le béton liquide est coulé. Dans l'exemple, les pointes 20, 22 s'étendent depuis la face inférieure 14 le long, respectivement, d'axes 21, 23. Ici, les axes 21, 23 sont perpendiculaires à la face 14.The
Avantageusement, les axes 21, 23 sont contenus dans un plan P contenant l'axe 13. Dans ces conditions, une fabrication du plot 8 par moulage est facilitée.Advantageously, the
Toujours de manière avantageuse, les axes 21, 23 et 13 sont orientés de manière à ce que le plan P soit un plan de symétrie pour le plot 8. Ici, les axes 21, 23 et 13 sont orientés de manière à ce que l'axe 13 forme un axe de symétrie pour le plot 8. Dans ce cas, le gauchissement du plot 8 fabriqué par moulage est diminué.Still advantageously, the
Toujours de manière avantageuse, les longueurs I1 et I2 des pointes, respectivement, 20, 22 sont supérieures ou égales à la moitié de l'épaisseur du substrat 4, de préférence, supérieures à 0,75 fois cette épaisseur. Les pointes 20, 22 ont ici une longueur I1 et I2 de 18mm.Still advantageously, the lengths I1 and I2 of the tips, respectively, 20, 22 are greater than or equal to half the thickness of the substrate 4, preferably greater than 0.75 times this thickness. The
Avantageusement, les pointes 20, 22 comportent des saillies 24 s'étendant radialement sur la périphérie extérieure des pointes 20, 22 de manière à augmenter la résistance mécanique des pointes 20, 22 à un éventuel arrachage du plot 8.Advantageously, the
Le tronc 12 et le repère 9 vont maintenant être décrit en détail. Selon l'invention et comme illustré, le tronc 12 et le repère 9 sont conformés pour permettre le coulissement du repère 9 le long du tronc 12. A cet effet, le tronc 12 est cylindrique et le repère 9 comporte un évidement 25 dans lequel le tronc 12 est reçu. Dans cette description, on désigne par « cylindre » un solide dont le volume est engendré par la translation d'une face directrice selon une génératrice. La face directrice n'est pas limité au cas où il s'agit d'un cercle. Il peut s'agir d'un carré, d'un triangle, d'une croix ou d'une face de forme quelconque.The
Dans l'exemple, la génératrice du tronc 12 et l'axe 13 sont confondus et sont perpendiculaires aux faces 14 et 16 du pied 10. Ainsi, ici le tronc 12 est un cylindre droit. On désigne par H2 la hauteur du tronc 12 selon l'axe 13. La hauteur H2 est déterminée de manière à être supérieure à l'épaisseur de la chape à couler sur le substrat. Typiquement, la hauteur H2 est supérieure à 50mm ou 100mm et, de préférence, inférieure à 300mm ou 200mm. Dans cet exemple, la hauteur H2 est de 150mm.In the example, the generatrix of the
Toujours dans l'exemple, la face génératrice du tronc 12 (plus visible sur la
- les pales 31, 33 soient disposées dans le plan P, et
- les pales 30, 32 soient disposées dans un plan perpendiculaire au plan P.
- the
31, 33 are arranged in the plane P, andblades - the
30, 32 are arranged in a plane perpendicular to the plane P.blades
Dans cette description, on désigne par c1 la hauteur des pâles 30-33. On désigne par c2 la largeur des pales 30-33. On désigne par c3 l'épaisseur des pales 30-33.In this description, c1 is the height of the blades 30-33. We denote by c2 the width of the blades 30-33. C3 denotes the thickness of the blades 30-33.
Dans cet exemple, les pales 30-33 s'étendent sur toute la hauteur du tronc 12. Aussi, ici, la hauteur c1 est de 150mm. La largeur c2 des pales est comprise entre 1mm et 30 mm. L'épaisseur c3 est comprise entre 0,9mm et 5mm. Dans l'exemple, la largeur c2 et l'épaisseur c3 sont égales, respectivement, à 9mm et 2mm.In this example, the blades 30-33 extend over the entire height of the
Avantageusement, les extrémités supérieures 35 des pales 30-33 sont biseautées de manière à faciliter l'introduction du tronc 12 dans l'évidement 25. On désigne par « extrémités supérieures » des pales 30-33 les extrémités par lesquelles le tronc 12 est introduit dans l'évidement 25.Advantageously, the upper ends 35 of the blades 30-33 are bevelled so as to facilitate the introduction of the
Dans l'exemple, le tronc 12 est formé d'un seul tenant avec le pied 10 et les pointes 20, 22 de manière à ne former qu'un seul bloc de matière. Ici, le plot 8 est réalisé en plastique tel que du Sinkral (marque déposée) vendu sous la référence F332 par la société Polimeri Europa (marque déposée).In the example, the
Avantageusement, la dureté du matériau dans lequel est réalisé le plot 8 est supérieure et, de préférence 1,5 fois supérieure, à la dureté du substrat 4 de manière à ce que les pointes 20, 22 puissent pénétrer à l'intérieur du substrat 4 sans se déformer et de manière à ce que le tronc 12 ne fléchisse pas sous son propre poids lorsque le plot 8 est déposé sur le substrat 4. La dureté est par exemple mesurée en utilisant l'échelle de Brinell.Advantageously, the hardness of the material in which the
Le repère 9 va maintenant être décrit plus en détail en référence aux
Selon l'invention, le repère 9 est conformé de manière à ce qu'il soit apte à être maintenu à une position réglable uniquement par l'intermédiaire de frottements entre le repère 9 et le tronc 12. A cet effet, la largeur de l'évidement 25 dans au moins une direction de mesure est inférieure ou égale à l'épaisseur du tronc 12 selon cette même direction de mesure. Dans ces conditions, lorsque le repère 9 est monté à coulissement sur le tronc 12, les frottements entre par exemple la bague 44 et le tronc 12 maintiennent le repère 9 à une hauteur réglable. Plus précisément, ici, ce sont les arêtes verticales extérieures des pales 30-33 qui frottent contre le fond des rainures 46-49.According to the invention, the
La hauteur h2 de la bague 44 dans une direction parallèle à l'axe 13 est supérieure à 1mm pour garantir une bonne stabilité. Par exemple, la hauteur h2 de la bague 44 est de 7mm.The height h2 of the
Le repère 9 comprend par ailleurs une référence visuelle permettant à l'utilisateur de délimiter l'épaisseur de la chape au niveau de la pige 6 sur le substrat 4. A cet effet, ici le repère 9 comporte une collerette 50 disposée autour de la bague 44. Cette collerette 50 s'étend avantageusement perpendiculairement aux faces extérieures de la bague 44 de manière à ce que lorsque le tronc 12 est introduit dans l'évidement 25, et que le plot 8 est disposé sur le substrat 4, la collerette 50 soit parallèle à la face 14 et donc au sol de la pièce dans laquelle est réalisée la chape de béton. Dans ces conditions, la collerette 50 peut être positionnée à l'aide d'un laser.The
Ici, la collerette 50 est circulaire. Toujours dans l'exemple, la collerette 50 et la bague 44 sont formées d'un seul tenant. Pour avoir une raideur suffisante, l'épaisseur h3 de la collerette 50 est supérieure à 1mm. Ici, l'épaisseur h3 est de 3mm.Here, the
Dans l'exemple, le repère 9 est réalisé dans un matériau dont la dureté est strictement inférieure à celle du matériau utilisé pour réaliser les pales 30-33. Par exemple, le repère 9 est réalisé en plastique. Avantageusement la dureté sur l'échelle de Brinell du matériau dans lequel est réalisé le repère 9 est inférieure à 20, de préférence inférieure à 15 ou 10. Ici, le matériau utilisé pour réaliser le repère 9 est de l'Exxtral (marque déposée) vendu sous la référence HMU208100000 par la société Exxon Mobil (marque déposée).In the example, the
Ici, le repère 9 est réalisé par moulage.Here, the
La
De nombreux autres modes de réalisation sont possibles sans sortir du cadre des revendications.Many other embodiments are possible without departing from the scope of the claims.
Le pied 10 n'est pas nécessairement un disque. Le pied 10 peut avoir tout type de forme. De même, la collerette 50 n'est nécessairement circulaire.
Plus de deux pointes peuvent être utilisées pour ancrer le pied 10 sur le substrat 4. De même, une seule pointe peut être utilisée. Dans ce cas, cette pointe s'étend de préférence selon l'axe 13. En variante, les pointes ne s'étendent pas toutes dans le même plan P.More than two tips may be used to anchor the
Le plot et/ou le repère ne sont pas nécessairement réalisés en plastique. Par exemple, le plot peut être réalisé en métal. Toutefois, de préférence, le poids de la pige reste inférieur à 1 kg et, avantageusement, à 350g.The stud and / or the marker are not necessarily made of plastic. For example, the stud may be made of metal. However, preferably, the weight of the freelancer remains less than 1 kg and, advantageously, 350 g.
Les saillies et renfoncements du tronc 12 et du repère 9 permettant le coulissement du repère 9 sur le tronc 12 peuvent être interverties les unes avec les autres. Par ailleurs, le nombre de saillies et de renfoncements peut être différent de quatre. De même, les nervures et rainures du tronc 12 et du repère 9 n'autorisant pas la rotation du repère 9 sur le tronc 12 peuvent être interverties les unes avec les autres. Le nombre de nervures et rainures peut être différent de quatre.The projections and recesses of the
Un circlips ou analogue peut être disposé autour du tronc 12 sous le repère 9, en soutien, de manière à maintenir le repère sur le corps dans une position prédéterminée.A circlip or the like may be disposed around the
En variante, l'utilisateur déforme élastiquement la bague 44 lorsque le tronc 12 est introduit dans l'évidement 25. Les forces de frottement intervenant entre le repère 9 et le tronc 12 sont accrues ce qui permet d'améliorer plus encore le maintien du repère 9 sur le tronc 12. Par ailleurs, l'introduction du tronc 12 dans l'évidement 25 est facilitée.In a variant, the user elastically deforms the
Des trous pour recevoir les pointes 20, 22 peuvent être préformés dans le substrat 4 avant l'enfoncement de la pige dans ce substrat. Dans ce cas, la dureté des pointes n'a pas besoin d'être supérieure à la dureté du substrat.Holes for receiving the
Le tronc 12 peut comporter des protubérances ou graduations s'étendant sur la périphérie extérieure du tronc 12 de manière à augmenter les frottements s'exerçant entre le repère 9 et le tronc 12. Ces protubérances s'étendent par exemple sur les faces extérieures des pales 30-33, perpendiculairement à la génératrice du tronc 12.The
L'utilisation de la pige 6 n'est pas limitée à la réalisation de chape de béton flottante. La pige 6 peut être utilisée pour la réalisation de tout type de chape.The use of the
Claims (10)
- Levelling gauge rod (6) for the production of a concrete screed produced on a substrate (4), this gauge rod comprising:- a single post (8) having a cylindrical trunk (12) provided with a single foot (10), this foot having a planar bearing face intended to come into contact with the substrate (4), this bearing face having a surface area greater than 3 cm2,- a mobile marker (9) mounted on this post (8), the position of the marker (9) making it possible to delimit the thickness of the concrete screed at the position of the gauge rod (6) on the substrate (4) and- at least one spike (20, 22) suitable for penetrating into the substrate (4) to anchor the foot (10) on this substrate,characterized in thata) the marker (9) has an opening (25) in which a corresponding part (30-33) of the trunk is received,b) said at least one spike (20, 22) is secured to the foot and extends from the bearing face,c) the opening (25) and the corresponding part (30-33) are formed to allow the marker (9) to slide along the generatrix of the trunk (12), andd) the width of the opening (25) in at least one direction of measurement is less than or equal to the width of the corresponding part (30-33) in this same direction of measurement, when the marker (9) is slidingly mounted on the trunk (12), so as to keep the marker (9) in an adjustable position along the trunk only via friction between the marker (9) and the trunk (12).
- Gauge rod (6) according to Claim 1, in which:- the trunk (12) extends along a vertical axis (13), and- all of the spikes (20, 22) of the rod (6) extend mainly along axes (21, 23) contained in a plane (P) containing the vertical axis (13).
- Gauge rod (6) according to any one of the preceding claims, in which the marker (9) comprises a ring (44) having the opening (25) in which the corresponding part (30-33) of the trunk is received.
- Gauge rod (6) according to Claim 3 in which the marker (9) comprises a collar (50) arranged around the ring (44).
- Gauge rod (6) according to any one of the preceding claims, in which the post and the marker (9) are made of plastic.
- Gauge rod (6) according to any one of the preceding claims, in which the marker (9) and the trunk (12) are made, respectively, of first and second materials, the hardness of the first material being strictly less than the hardness of the second material.
- Gauge rod (6) according to any one of the preceding claims, in which the trunk (12) comprises at least one groove or one ridge (30-33), which extends parallel to the generatrix of the trunk, and the marker comprises a protuberance received in the groove or a hollow (46-49) receiving the ridge.
- Gauge rod (6) according to Claim 7, in which the trunk (12) comprises at least four ridges (30-33) uniformly distributed over the periphery of the trunk (12).
- Assembly for producing a concrete screed, this assembly comprising:- a substrate (4) on which the concrete screed is intended to be poured, the Shore hardness on the scale A of this substrate (4) at 20°C lying between 30 and 99,- a levelling gauge rod (6) comprising:characterized in that the levelling gauge rod conforms to any one of the preceding claims.• a post (8) having a trunk (12) provided with at least one foot (10), this foot having a planar bearing face intended to come into contact with the substrate (4), and• a mobile marker (9) mounted on this post (8), the position of the marker (9) making it possible to delimit the thickness of the concrete screed at the location of the gauge rod (6) on the substrate (4),
- Assembly according to Claim 9, in which the substrate comprises polyurethane or polystyrene.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1056435A FR2963629B1 (en) | 2010-08-04 | 2010-08-04 | LEVELING PIG FOR REALIZING A CONCRETE CAP |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2415949A2 EP2415949A2 (en) | 2012-02-08 |
EP2415949A3 EP2415949A3 (en) | 2014-12-10 |
EP2415949B1 true EP2415949B1 (en) | 2016-05-18 |
Family
ID=43598500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11176355.3A Active EP2415949B1 (en) | 2010-08-04 | 2011-08-02 | Levelling indicator for the production of a concrete covering |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2415949B1 (en) |
FR (1) | FR2963629B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110259036B (en) * | 2019-07-05 | 2021-11-26 | 变形积木(北京)装饰工程有限公司 | Ground leveling method |
FR3111652B1 (en) | 2020-06-19 | 2022-07-29 | La Boutique Du Chapiste | IMPROVED LEVELING PIN FOR CONCRETE SCREED |
DE102020123727B4 (en) * | 2020-09-11 | 2022-08-11 | Christoph Wagner | Marking device and method for height marking |
FR3121698B1 (en) * | 2021-04-09 | 2023-04-07 | Zifort | Leveling block for the production of a concrete screed having a clamp provided with a marking part |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3346230A (en) * | 1964-07-15 | 1967-10-10 | Accessories Mfg Corp Const | Pipe sleeve |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US414131A (en) | 1889-10-29 | Meat-cutting machine | ||
US3333380A (en) * | 1964-02-07 | 1967-08-01 | Wolf Heinz | Adjustable leveling implement for finishing cast concrete layers |
US4141310A (en) * | 1977-09-14 | 1979-02-27 | Rich Jr Rodney W | Poured floor level indicator |
DE3000014A1 (en) * | 1980-01-02 | 1981-07-09 | Gebr. Seifert GmbH & Co, 5880 Lüdenscheid | Concrete reinforcing inlays spacer - has holder for selective rod positioning between blind holes in plastic plinth |
KR100428285B1 (en) * | 2001-06-12 | 2004-04-27 | 김진술 | Building levelling rod |
-
2010
- 2010-08-04 FR FR1056435A patent/FR2963629B1/en not_active Expired - Fee Related
-
2011
- 2011-08-02 EP EP11176355.3A patent/EP2415949B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3346230A (en) * | 1964-07-15 | 1967-10-10 | Accessories Mfg Corp Const | Pipe sleeve |
Also Published As
Publication number | Publication date |
---|---|
FR2963629B1 (en) | 2013-07-05 |
EP2415949A2 (en) | 2012-02-08 |
EP2415949A3 (en) | 2014-12-10 |
FR2963629A1 (en) | 2012-02-10 |
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